Improvement in harrow and cultivator teeth



8.1. MASON Harrow and Cultivatur-Tmfih.

- No.152,807 Patentedluiy 7,18 74.

M vnmua vs.

THE GRAPHIC COPHO O-LiTH:39&4-l PARK PLACLNXh I UNITED STATES PATENT QFFIGE.

STEPHEN J. NASON, OF SOUTH BERWICK JUNCTION, MAINE.

IMPROVEMENT IN HARROW AND CULTIVATOR TEETH.

Specification forming part of Letters Patent No. 152,807, dated July 7, 1874; application filed I March 28, 1874.

To all whom it may concern:

Be it known that I, STEPHEN J. NAsoN, of South Berwick J unction,'York county, Maine, have invented a new and useful Improvement in Harrow and Cultivator Tooth, of which the following is a specification:

Figure l .is a side view of a barrow to which my improved teeth have been applied, one of the teeth being shown in section. Fig. 2 is a top view of the same, and Fig. 3 is a detail ward part to the harrow or cultivator frame B by a bolt, 0, as shown in Figs. 1, 2, and 3.

The teeth A are designed to be made of steel, and with their forward or inclined edges sharp.

\Vith this construction the teeth will always keep themselves sharp; will thoroughly cut in pieces and destroy weeds; will thoroughly pulverize soil and manure; will readily turn aside for and pass around small obstructions and will pass over large obstructions.

Having thus described my invention, I claim as new and desire to secure by Letters latent- A pair of edge-inclined triangular teeth, A, connected at the top and pivoted in front on a bolt, 0, as shown and described, whereby each pair becomes self-adjusting.

j STEPHEN J. NASON.

Witnesses:

ABNER OAKEs, J os. W. Goonwru, WM. P. G-RAvEs. 

